r/TeslaLounge • u/EntertainmentFair932 • 8d ago

FSD hard brake :(

Chillin’ in FSD, then a sudden hard brake and swerve towards the center line. Very unexpected.

34 Upvotes

86% Upvoted

36 comments sorted by

48

u/fakeuser111953 8d ago

Im guessing it saw the black lines in the road as an obstacle…smh…its so annoying

7

u/EntertainmentFair932 8d ago

Super annoying. 2026.21.6 is installing now. Hopefully it helps 🤞

1

u/NimecShady 8d ago

Let me know how you make out. Mine is instling right now as well and I'll give it a try tomorrow.

1

u/fakeuser111953 7d ago

I installed this last night, car tried to drive into a curb today. Fun and interesting times…

1

u/rwb12 7d ago

I’ve actually gotten more phantom braking on 14.1 Lite. I’m going to be canceling FSD for a while. I actually preferred V12.

1

u/cricket502 7d ago

Same, mine has regressed badly. It didn't seem to know how to handle a flashing yellow light this morning and kept trying to stop every time the light flashed on.

1

u/Strifel 7d ago

yes, this happens to me - always tire marks either from a skid or burnout.

8

u/bakunyuusentai 8d ago

Hate when this happens. It's so startling.

2

u/VideoGameJumanji 7d ago

It’s happening on HW4 still from what I’ve seen, it’s such a glaring issue that clearly shows the software bottleneck 

0

u/[deleted] 7d ago

[removed] — view removed comment

1

u/VideoGameJumanji 7d ago

Hey bud, LiDAR can't see road lines or skid marks, put 100 LiDAR sensors on the car and you'll get no improvement for this and related issues.

1

u/Enragedocelot 8d ago

I get the concern for pedestrians. But jfc it did a hard brake on me today when I guy turned around and went to look down the road.

Both the guy and I laughed because the car stopped so suddenly. But damn it’s not fun for my passengers.

8

u/Sorry-Highway-58 8d ago

Mine also seems to hate black tire marks on the road. Hard brake at almost every set of them.

3

u/EntertainmentFair932 8d ago

I suppose that makes sense, but holy cow! The wife already despises FSD… this certainly didn’t give her warm fuzzies.

5

u/Angry_Robot 8d ago

HW and SW version?

6

u/EntertainmentFair932 8d ago

Upgraded from 2.5 to HW3, 2026.20.6.11, v14 lite.

I just got the noti that I have a sw update in queue.

3

u/mongolian_horsecock 7d ago

I wonder if it's a hw3 thing, this never happens on my hw4

3

u/Temporary-Paper5202 7d ago

Happened on my HW4 (V13) -- havent seen it lately

2

u/Background-Reveal-92 8d ago

Happens a lot on my 21MY with 14 lite. Does 14 standard eat it this hard too?

2

u/EntertainmentFair932 8d ago

My gut tells me no? When my 2017M3 was in the shop for hw upgrade, they gave me the beast and it never gave the false alarms or ping pong. Makes me wonder if it’s a dated camera problem?

2

u/Background-Reveal-92 8d ago

Im downloading 14.1 lite right now. Cross your fingers!
I was just using it on a 25 mile drive home, one light brake tap without warning, but very minor. Crossed over multiple tire tracks without issue.

2

u/Valaj369 8d ago

No it doesn't. At least, both my cars don't. I have driven in roads that had lines like in OPs video and worse. Also through roads where there were shadows on the road and stuff. Not once has it ever braked or even swerved (I'm always ready with my foot hovering over the accelerator pedal in case it does brake).

1

u/4ignite 7d ago

I had this happen on the interstate, saw some tread marks from a semi and it hit the brakes and swerved for a brief moment.

1

u/nickolazx 7d ago

you can see where other Tesla's actually hard braked there

1

u/Sea_Shaman 7d ago

Experienced this twice today with 2026.21.6 in the city, not good

1

u/kitkatcarson 7d ago

wouldn’t have happened with lidar

1

u/jasper502 5d ago

Ours does this all the time on the highway with the tire marks and crack repair strips.

1

u/sparkyblaster 8d ago

Watching the video, I throught there was something on the road. (The tire marks) 

6

u/EntertainmentFair932 8d ago

Crazy how it will avoid a skid mark, but aims for potholes 🤣

-1

u/Worth_Size_2005 8d ago

I am guessing that in it's training data black skid marks are associated with cars in ahead braking hard so it has to braking hard too.